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Nitrogen from humans pollutes remote lakes for more than a century

Harlequinmania

By Harlequinmania,
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Harlequinmania

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Nitrogen derived from human activities has polluted lakes throughout the Northern Hemisphere for more than a century and the fingerprint of these changes is evident even in remote lakes located thousands of miles from the nearest city, industrial area or farm. The findings are based on historical changes in the chemical composition of bottom deposits in lakes using an approach similar to aquatic archeology.

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1000 Gallon Tank in the Hole 

http://www.sgreefclub.com/forum/topic/120957-1000-gallon-3d-hole-in-the-wall/ 

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